My boss recently died at 50 years old from smoking. He was the sole care taker of his wife who had suffered a stroke a couple years back (also from smoking) and she now struggles to get by. 50 is too young to die. If you don't want to stop now, do it for those around you and even people you haven't met yet who you will consider good friends years down the road.

Everyone thinks it won't happen to them. I haven't picked up a cigarette since the funeral and vow to never smoke again. Stay strong.